HIGH PURITY REFRACTORY METAL POWDERS AND THEIR USE IN SPUTTERING TARGETS WHICH MAY HAVE RANDOM TEXTURE
    2.
    发明申请
    HIGH PURITY REFRACTORY METAL POWDERS AND THEIR USE IN SPUTTERING TARGETS WHICH MAY HAVE RANDOM TEXTURE 有权
    高纯度金属粉末及其在可能具有随机纹理的溅射目标中的应用

    公开(公告)号:US20150292081A1

    公开(公告)日:2015-10-15

    申请号:US14681660

    申请日:2015-04-08

    Abstract: A method for making a sputtering target including steps of encapsulating and hot isostatically pressing at least one mass of metal powder (e.g., tantalum), having a particle size ranging from about 10 to about 1000 μm, with at least about 10 percent by weight of particles having a particle size greater than about 150 μm (for example, about 29 to about 56 percent (e.g., about 35 to about 47 percent) by weight of the particles in the at least one mass of metal powder having a particle size that is larger than 150 microns, but below about 250 μm), for defining at least a portion of a sputtering target body, having an essentially theoretical random and substantially uniform crystallographic texture.

    Abstract translation: 一种用于制造溅射靶的方法,包括以下步骤:将至少一种具有约10至约1000μm的粒度的至少一种金属粉末(例如钽)与至少约10重量%的金属粉末 粒径大于约150μm的颗粒(例如,在至少一种质量的金属粉末中的颗粒的重量比例为约29至约56%(例如约35至约47%),其粒径为 大于150微米,但低于约250μm),用于限定溅射靶体的至少一部分,具有基本上理论上的随机和基本上均匀的晶体织构。

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